The is a source of stem cells that has the characteristics of self-renewal and limited differentiation.

a. embryonic cell

b. somatic cell

c. amniotic fluid

d. heart muscle

Option c - amniotic fluid'.

Explanation:

The stem cells which have the characteristic of self-renewal and limited differentiation are present in the amniotic fluid.

The cells present in the amniotic fluid are capable of forming a wide array of different cells. However, they are not pleuripotent, but when grown in the right environment they can form brain, liver, fat, blood vessels, bone and muscle cells.

the answer is 'Option C - amniotic fluid'.

Answer: amniotic fluid